# File lib/rubygems/gem_commands.rb, line 925
    def initialize
      super(
        'update',
        'Update the named gem (or all installed gems) in the local repository',
        {
          :generate_rdoc => true, 
          :generate_ri => true, 
          :force => false, 
          :test => false,
          :install_dir => Gem.dir
        })
      add_install_update_options
      add_option('--system',
        'Update the RubyGems system software') do |value, options|
        options[:system] = value
      end
    end